Bench blasting is commonly used in open-pit mining.Some design parameters such as positions of hole packing and caving holes have great influences on the blasting effects.In this work,with a hybrid discrete-finite ele...Bench blasting is commonly used in open-pit mining.Some design parameters such as positions of hole packing and caving holes have great influences on the blasting effects.In this work,with a hybrid discrete-finite element method,numerical simulations of bench blasting are conducted,capturing the whole continuous-discontinuous processes.Considering two engineering cases,the influences of hole packing and caving holes are evaluated.The numerical results not only lead to some improved designs by relocating the packing positions and caving holes but also indicate the reliability of the adopted numerical tools.展开更多
基金the financial support by the National Natural Science Foundation of China(NSFC)(52178324).
文摘Bench blasting is commonly used in open-pit mining.Some design parameters such as positions of hole packing and caving holes have great influences on the blasting effects.In this work,with a hybrid discrete-finite element method,numerical simulations of bench blasting are conducted,capturing the whole continuous-discontinuous processes.Considering two engineering cases,the influences of hole packing and caving holes are evaluated.The numerical results not only lead to some improved designs by relocating the packing positions and caving holes but also indicate the reliability of the adopted numerical tools.
